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Is the universe conscious? It seems impossible until you do the maths

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THEY call it the “unreasonable effectiveness of mathematics”. Physicist Eugene Wigner coined the phrase in the 1960s to encapsulate the curious fact that merely by manipulating numbers we can describe and predict all manner of natural phenomena with astonishing clarity, from the movements of planets and the strange behaviour of fundamental particles to the consequences of a collision between two black holes billions of light years away. Now, some are wondering if maths can succeed where all else has failed, unravelling whatever it is that allows us to contemplate the laws of nature in the first place.

It is a big ask. The question of how matter gives rise to felt experience is one of the most vexing problems we know of. And sure enough, the first fleshed-out mathematical model of consciousness has generated huge debate about whether it can tell us anything sensible. But as mathematicians work to hone and extend their tools for peering deep inside ourselves, they are confronting some eye-popping conclusions.

Not least, what they are uncovering seems to suggest that if we are to achieve a precise description of consciousness, we may have to ditch our intuitions and accept that all kinds of inanimate matter could be conscious – maybe even the universe as a whole. “This could be the beginning of a scientific revolution,” says Johannes Kleiner, a mathematician at the Munich Centre for Mathematical Philosophy in Germany.

If so, it has been a long time coming. Philosophers have pondered the nature of consciousness for a couple of thousand years, largely to no avail. Then, half a century ago, biologists got involved. They have discovered …

Article amended on 4 May 2020

Correction: We have updated the campus of Inland Norway University of Applied Sciences at which Hedda Hassel Mørch is based, and changed the attribution of work on the effects of sleep or sedation on phi.

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April 29, 2020
We may have spotted a parallel universe going backwards in time

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IN THE Antarctic, things happen at a glacial pace. Just ask Peter Gorham. For a month at a time, he and his colleagues would watch a giant balloon carrying a collection of antennas float high above the ice, scanning over a million square kilometres of the frozen landscape for evidence of high-energy particles arriving from space.

When the experiment returned to the ground after its first flight, it had nothing to show for itself, bar the odd flash of background noise. It was the same story after the second flight more than a year later.

While the balloon was in the sky for the third time, the researchers decided to go over the past data again, particularly those signals dismissed as noise. It was lucky they did. Examined more carefully, one signal seemed to be the signature of a high-energy particle. But it wasn’t what they were looking for. Moreover, it seemed impossible. Rather than bearing down from above, this particle was exploding out of the ground.

That strange finding was made in 2016. Since then, all sorts of suggestions rooted in known physics have been put forward to account for the perplexing signal, and all have been ruled out. What’s left is shocking in its implications. Explaining this signal requires the existence of a topsy-turvy universe created in the same big bang as our own and existing in parallel with it. In this mirror world, positive is negative, left is right and time runs backwards. It is perhaps the most mind-melting idea ever to have emerged from the Antarctic ice – but it might just be true.

The ambitions…

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April 8, 2020
Don’t stress: The scientific secrets of people who keep cool heads

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YOU know that person. The one who uses a delayed train as an excuse to get stuck into a good book. The one who can make a joke 10 seconds after breaking their ankle. The one who loves giving presentations and never falters under pressure. They seem to float through life unfazed by the stress that can overwhelm the rest of us. What’s their secret?

Are they blessed with stress-resistant genes? Did their upbringing make them exceptionally resilient? Have they learned specific ways of coping with life’s challenges? Or do they just know how to avoid stress altogether? To answer these questions, researchers have been examining how humans and animals react and adapt to adversity, identifying those who are particularly resilient to stress and teasing apart the factors that contribute to this ability. It is a journey that has taken them from orphanages in Romania and interrogation chambers in North Carolina to fire stations in Indianapolis and humour classes in Austria.

This work is helping the military recruit candidates for high-stress jobs. It has also led to the first human trial of a “stress vaccine”, with the potential to inoculate us against its devastating effects, from post-traumatic stress disorder (PTSD) to depression. But there is a bigger pay-off to understanding the secret of stress-free living. Knowing why some people handle stress better than others, and the things we might all do to improve our resilience, won’t just help all of us manage life’s daily struggles better, it might also teach us how to use stress to our advantage.

One thing is for certain: whether you are running late for…

Article amended on 27 February 2020

We clarified when people suffered negative effects of stress.

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February 19, 2020